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A Method for Rapid Evaluation of Thermal Performance of Wall Assemblies Based on Geographical Location

Author

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  • Jan Kočí

    (Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, 166 29 Prague 6, Czech Republic)

  • Václav Kočí

    (Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, 166 29 Prague 6, Czech Republic)

  • Robert Černý

    (Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, 166 29 Prague 6, Czech Republic)

Abstract

In this study, we present a method for the rapid evaluation of thermal performance of building envelopes without the need of using sophisticated and time-consuming computational modeling. The proposed approach is based on the prediction of monthly energy balances per unit area of a wall assembly using monthly averages of temperature and relative humidity, as well as the elevation of a building’s location. Contrary to most other methods, the obtained results include how moisture content in the wall effects its thermal performance. The developed formulas for calculation of monthly energy balances are verified for nine commonly used wall assemblies in Central Europe in 10 randomly selected locations. The observed agreement of the predicated data was determined using advanced finite-element simulation tools and hourly climatic data, which makes for good prerequisites for the further application of the method in both research and building practices.

Suggested Citation

  • Jan Kočí & Václav Kočí & Robert Černý, 2019. "A Method for Rapid Evaluation of Thermal Performance of Wall Assemblies Based on Geographical Location," Energies, MDPI, vol. 12(7), pages 1-16, April.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:7:p:1353-:d:221030
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    References listed on IDEAS

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    1. Szodrai, Ferenc & Lakatos, Ákos & Kalmár, Ferenc, 2016. "Analysis of the change of the specific heat loss coefficient of buildings resulted by the variation of the geometry and the moisture load," Energy, Elsevier, vol. 115(P1), pages 820-829.
    2. Kruis, Jaroslav & Koudelka, Tomáš & Krejčí, Tomáš, 2010. "Efficient computer implementation of coupled hydro-thermo-mechanical analysis," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 80(8), pages 1578-1588.
    3. Cansino, José M. & Pablo-Romero, María del P. & Román, Rocío & Yñiguez, Rocío, 2011. "Promoting renewable energy sources for heating and cooling in EU-27 countries," Energy Policy, Elsevier, vol. 39(6), pages 3803-3812, June.
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    1. Jan Fořt & Jan Kočí & Jaroslav Pokorný & Robert Černý, 2020. "Influence of Superabsorbent Polymers on Moisture Control in Building Interiors," Energies, MDPI, vol. 13(8), pages 1-13, April.

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